Larry Millette
Member
The nozzle on the bottom looks a little off to me. top one is fine. I zoomed in on the tips. Are you sure those are 2's? Ive got 2's on all mine and the oriface looks a little bigger on mine.
New surface cleaner
- Thread starter Joseph Floyd
- Start date
Russ Spence
Commercial Pressure Wash Expert
you are right the bottom does seem to be off a tad , make sure you have them lined up right when you install the new tips as well
Joseph Floyd
New member
Thanks for all of the help. 25 degree tips should be here next week and I'll try a section further up. I'm still a bit concerned about the edges of the drive. There is a pattern all the way up it. I spoke with one of my drivers yesterday who used to do cement and he said that alot of the contractors around here go cheap on the driveways (2500psi). He said 3000psi is always second choice. What do you do other than the a wider fan tip to prevent damage to the weaker concrete mix?
Jim@Garagecleaning
banned
If you are " Taking the creme off the cement" it has to do with too much pressure for the gallons per minute.
Simple example. You have a scab on the back of your hand. You have 2 knifes. You take the sharp one and apply pressure to scrape off the scab substance. You end up cutting the skin. You take that butter knife and apply same pressure. You end up removing the scab without cutting the skin. The blades are ever so different in size. But the Sharp knife is just a thinner blade and ends up cutting the skin over the butter knife.
This is the same with the water. The thinner the spray ( Less GPMs) the sharper the water will be and it will "cut" the cement.
You have Four choices.
1. Turn your unloader down to a lower PSI or...
2. Change your nozzles to 25 degrees as Russ said
3. Change the nozzle to 3.0 or high. ( This will give you a " Thicker Spray" but lower your psi) This I think would be the preferred method.
4. Do a combination of them like #2 & #3
4.3 Gallons per minute is difficult, not impossible though, to clean " Cheap " Cement. If you plan on doing just cement only, you should consider a larger pump in the future.
Simple example. You have a scab on the back of your hand. You have 2 knifes. You take the sharp one and apply pressure to scrape off the scab substance. You end up cutting the skin. You take that butter knife and apply same pressure. You end up removing the scab without cutting the skin. The blades are ever so different in size. But the Sharp knife is just a thinner blade and ends up cutting the skin over the butter knife.
This is the same with the water. The thinner the spray ( Less GPMs) the sharper the water will be and it will "cut" the cement.
You have Four choices.
1. Turn your unloader down to a lower PSI or...
2. Change your nozzles to 25 degrees as Russ said
3. Change the nozzle to 3.0 or high. ( This will give you a " Thicker Spray" but lower your psi) This I think would be the preferred method.
4. Do a combination of them like #2 & #3
4.3 Gallons per minute is difficult, not impossible though, to clean " Cheap " Cement. If you plan on doing just cement only, you should consider a larger pump in the future.